Climbing exerciser machine with adjustable inclination

Abstract

A climbing exercise machine with adjustable inclination includes a frame, an exercising unit including pair of arm members respectively pivotally mounted to the frame, a pedal unit including a pair of pedal shafts respectively pivotally connected to the arm members, a damper including a rotatable wheel with an axle and adapted for providing damping to the pedal unit, a guide unit including a pair of cranks respectively fixedly connected to opposite ends of the axle of the rotatable wheel and respectively pivotally connected to the pedal shafts, a pair of rockers respectively pivotally connected to the cranks and a pair of links respectively pivotally connected to the rockers, and an adjusting unit mounted to the frame and adapted for driving the links to adjust the distance between a rear pivoting portion of each rocker and the frame and to achieve adjustment of the inclination of the climbing exercise machine.

What is claimed is: 
     
       1. A climbing exercise machine, comprising:
 a frame comprising a base and a support fixedly mounted at said base; 
 an exercising unit comprising a pair of arm members respectively pivotally mounted to said support of said frame and alternatively movable back and forth relative to said frame, each said arm member comprising a pivot-connection portion located at a top end thereof and pivotally connected to said support and a swinging portion located at an opposing bottom end thereof; 
 a pedal unit comprising a pair of pedal shafts respectively pivotally connected to said arm members of said exercising unit, each said arm member comprising a front end portion located at a front end thereof and pivotally connected to said swinging portion of a respective one of said arm members and a rear end portion located at an opposite end thereof; 
 a damper adapted for imparting damping to said pedal shafts, said damper comprising a rotatable wheel, said rotatable wheel comprising an axle pivotally connected to said frame; 
 a guide unit comprising a pair of cranks respectively fixedly connected to two opposite ends of said axle of said rotatable wheel and adapted for driving said rotatable wheel to rotate, a pair of rockers respectively pivotally connected to said cranks and a pair of links respectively pivotally connected to said rockers, each said rocker comprising a middle pivoting portion located at a middle part thereof and pivotally connected to a respective one of said cranks, a rear pivoting portion located at a rear end thereof and pivotally connected to said rear end portion of a respective one of said pedal shafts of said pedal unit and a front pivoting portion located at an opposing front end thereof and pivotally connected to a respective one of said links, each said link having one end thereof pivotally connected to said front pivoting portion of a respective one of said rockers and an opposite end thereof terminating in a constrained end portion; and 
 an adjusting unit mounted at said frame and operable to move said constrained end portions of said links relative to said support to further adjust the distance between said rear pivoting portions of said rockers and said base. 
 
     
     
       2. The climbing exercise machine as claimed in  claim 1 , wherein said adjusting unit comprises an interlocking member pivotally connected to said support of said frame, a screw rod threaded into said interlocking member and a driving device pivotally connected to said support of said frame, said interlocking member comprising a pivot axle pivotally connected to said constrained end portions of said links of said guide unit and a screw nut pivotally connected to one side of said pivot axle and threaded onto said screw rod, said driving device being operable to rotate said screw rod and to further drive said interlocking member to rotate relative to said support and to move along said screw rod. 
     
     
       3. The climbing exercise machine as claimed in  claim 2 , further comprising a handlebar unit, said handlebar unit comprising a pair of grips respectively connected to the respective top ends of said arm members.